Sash stoppek



NSMWED STATES PATENT CFFICE` CHARLES C. FELTON, OF DEDHAM,MASSACHUSETTS.

SASH STOPPER ANI) FASTENER.

Specification of Letters Patent No. 8,885, dated April 20, 1852.

To all whom it may concern:

Be it known that I, CHARLES C. FELToN, of Dedham, in the county ofNorfolk and State of Massachusetts, have invented a new or ImprovedVindow-Sash Fastener and Supporter; and I do hereby declare that thesame is fully described and represented in the following specificationand the accompanying drawings, letters, figures, and references thereof.

Cf the said drawings Figure 1 denotes an elevation of a window frame andits two sashes, having my improved fastener and supporter applied toeach of the latter and represented in dotted lines. Fig. 2 is a verticalsection of the whole apparatus.`

In the said drawings A and B respectively represent the lower and uppersashes of the window, C being t-he `frame thereof. The supporter andfastener applied to one sash `is similar to that affixed to the other,except that its position in this case is the reverse of that in theother as denoted in Fig. l.

. -It consist-s first of a catch plate E which is led into the face ofthe pulley stile and kept in place by a screw F. The inner surface ofthe catch plate is made obtuse angular as seen at a, b, c and terminatesagainst a stop or shoulder cl.

The said supporter and fastener consists secondly of a lever bar F whosesurface which is against the surface a, o, c is made straight or nearlyso and rests or works on the vertex ZJ of the angle a, b, c. This bar ismade with a projection f from its rear side on which projection ahelical spring g is placed and let into the sash A, the said springbeing made to press the lever bar toward the pulley stile or side of thewindow frame C. A thumb rod it provided with a head z' is affixed to thelower end of the lever bar and extends through an opening la madethrough the sash.

Where the parts are in the position with respect to one another as seeninFig. 2, if pressure is made on the head c', the lever bar can be madeto turn on the vertex bof the axis of the projection f or the helicalspring g', and the end fm of the lever bar, in order that the outwardpressure of the spring when the end m is brought directly opposite oragainst the shoulder Z may throw the upper part of the lever bar intothe recess formed by the-inner face of the part Z), c, and theshoulderd, as seenin Fig. 2, and thereby cause the sash to be locked or fastenedto the pulley stile or window frame when down to its lowest position incase it be the lower sash, or up in its upper position y in case it bethe upper sash.

During any vertical movement of the' sash the lever bar is forced by itsspring against the pulley stile, the force being suflicient to overcomethe weight of the sash and create friction suicient to hold it in anydesirable 'position in the window frame, thus, dispensing with the useof balance weights, cords `and pulleys, as generally employed for suchpurpose.

My improved sash supporter and fastener has great advantages over manyor all othiers in use, for," consisting of few parts it is easily andcheaply made and can bevreadily applied to a window. Its operation issure or certain and it is not likely to get out of order.

I do not claim the combination of a rocking or vibrating friction plate,a lever spring, and notched plate as they are arranged in the drawingsof the patent granted to B. S. I-Iadaway; but, as I dispense fentirelywith a lever separate from the rocking friction plate and make the saidplate to operate itself I claim My improvement of combining the rockingplate F and lever in one single piece, and extending it below the partwhich rocks on the part of the notch of the catch plate. all essentiallyin manner as described,

whereby I greatly simplify the construction i

